[12.x] use promoted properties for Mail events

src/Illuminate/Mail/Events/MessageSending.php

@@ -6,30 +6,16 @@
 
 class MessageSending
 {
-    /**
-     * The Symfony Email instance.
-     *
-     * @var \Symfony\Component\Mime\Email
-     */
-    public $message;
-
-    /**
-     * The message data.
-     *
-     * @var array
-     */
-    public $data;
-
     /**
      * Create a new event instance.
      *
-     * @param  \Symfony\Component\Mime\Email  $message
-     * @param  array  $data
+     * @param  \Symfony\Component\Mime\Email  $message  The Symfony Email instance.
+     * @param  array  $data  The message data.
      * @return void
      */
-    public function __construct(Email $message, array $data = [])
-    {
-        $this->data = $data;
-        $this->message = $message;
+    public function __construct(
+        public Email $message,
+        public array $data = [],
+    ) {
     }
 }

src/Illuminate/Mail/Events/MessageSent.php

@@ -11,31 +11,17 @@
  */
 class MessageSent
 {
-    /**
-     * The message that was sent.
-     *
-     * @var \Illuminate\Mail\SentMessage
-     */
-    public $sent;
-
-    /**
-     * The message data.
-     *
-     * @var array
-     */
-    public $data;
-
     /**
      * Create a new event instance.
      *
-     * @param  \Illuminate\Mail\SentMessage  $message
-     * @param  array  $data
+     * @param  \Illuminate\Mail\SentMessage  $sent  The message that was sent.
+     * @param  array  $data  The message data.
      * @return void
      */
-    public function __construct(SentMessage $message, array $data = [])
-    {
-        $this->sent = $message;
-        $this->data = $data;
+    public function __construct(
+        public SentMessage $sent,
+        public array $data = [],
+    ) {
     }
 
     /**